Alarm Status - GE 489 Instruction Manual

5.2 A1 STATUS
5
Immediately prior to issuing a trip, the 489 takes a snapshot of generator parameters and stores them as pre-trip values;
this allows for troubleshooting after the trip occurs. The cause of last trip message is updated with the current trip and the
screen defaults to that message. All trip features are automatically logged as date and time stamped events as they occur.
This information can be cleared using the
last trip is "No Trip To Date", the subsequent pretrip messages will not appear. Last Trip Data will not update if a digital input
programmed as Test Input is shorted.
PATH: ACTUAL VALUES

ALARM STATUS

[ENTER] for more
5-4
NEUTRAL VOLT (3rd)
ESCAPE
PRETRIP: 0.0 V
MESSAGE
REAL POWER (MW)
ESCAPE
PRETRIP: 0.000
MESSAGE
REACTIVE POWER Mvar
ESCAPE
PRETRIP: 0.00 Hz
MESSAGE
APPARENT POWER MVA
ESCAPE
PRETRIP: 0.00 Hz
MESSAGE
HOTTEST STATOR RTD
ESCAPE
RTD #1: 0°C PreTrip
MESSAGE
HOTTEST BEARING RTD
ESCAPE
RTD #7: 0°C PreTrip
MESSAGE
HOTTEST OTHER RTD
ESCAPE
RTD #11: 0°C PreTrip
MESSAGE
AMBIENT RTD
ESCAPE
RTD#12: 0°C PreTrip
MESSAGE
ANALOG INPUT 1
ESCAPE
PreTrip: 0 Units
MESSAGE
ANALOG INPUT 2
ESCAPE
PreTrip: 0 Units
MESSAGE
ANALOG INPUT 3
ESCAPE
PreTrip: 0 Units
MESSAGE
ANALOG INPUT 4
ESCAPE
PreTrip: 0 Units
MESSAGE
Vab/Iab PreTrip:
ESCAPE
0.0 Ωsec.
MESSAGE
S1 489 SETUP
A1 STATUS ALARM STATUS
ð
NO ALARMS
ENTER
ð
ESCAPE
Input A ALARM
ESCAPE
STATUS: Active
MESSAGE
Input B ALARM
ESCAPE
STATUS: Active
MESSAGE
Input C ALARM
ESCAPE
STATUS: Active
MESSAGE
489 Generator Management Relay
Range: 0.0 to 25000.0 V
Seen only if there is a neutral voltage
transformer.
Range: 0.000 to ±2000.000 MW
Not seen if
Range: 0.000 to ±2000.000 Mvar
Not seen if
Range: 0.000 to ±2000.000 MVA
Not seen if
Range: –50 to 250°C
Seen only if at least one RTD is "Stator"
Range: –50 to 250°C
Seen only if at least one RTD is "Bearing"
Range: –50 to 250°C
Seen only if at least one RTD is "Other"
Range: –50 to 250°C
Seen only if at least one RTD is Ambient
Range: –50000 to 50000
Not seen if
Range: –50000 to 50000
Not seen if
Range: –50000 to 50000
Not seen if
Range: –50000 to 50000
Not seen if
Range: 0 to 65535 Ωsec; 0 to 359°
Seen only if Loss of Excitation is enabled
0°
CLEAR DATA CLEAR LAST TRIP DATA
Range: N/A
Message seen when no alarms are active
Range: Active, Latched. The first line of this alarm
message
programmed. Status is Active if the condition
that caused the alarm is still present
Range: see Input A ALARM STATUS
Range: see Input A ALARM STATUS
5 ACTUAL VALUES
VT CONNECTION is "None"
VT CONNECTION is "None"
VT CONNECTION is "None"
VT CONNECTION is "None"
VT CONNECTION is "None"
VT CONNECTION is "None"
VT CONNECTION is "None"
setpoint. If the cause of
5.2.3 ALARM STATUS
reflects the Input Name
GE Multilin
as